Pith Number

pith:BADAYSFA

pith:2005:BADAYSFAPA63Y7ZY4MQEIR54O4

not attested not anchored not stored refs pending

Rational curves and ordinary differential equations

Benjamin McKay (University College Cork)

arxiv:math/0507087 v5 · 2005-07-05 · math.DG · math.CA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BADAYSFAPA63Y7ZY4MQEIR54O4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T15:00:28.872003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08060c48a0783dbc7f38e3204447bc771aa755c2393f8fc949b7f06a7ed667f9

Aliases

arxiv: math/0507087 · arxiv_version: math/0507087v5 · doi: 10.48550/arxiv.math/0507087 · pith_short_12: BADAYSFAPA63 · pith_short_16: BADAYSFAPA63Y7ZY · pith_short_8: BADAYSFA

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BADAYSFAPA63Y7ZY4MQEIR54O4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 08060c48a0783dbc7f38e3204447bc771aa755c2393f8fc949b7f06a7ed667f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b4785ff4619ff478979a4344a19809e2894d783122c417247ed94080e34fe2f",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2005-07-05T10:27:13Z",
    "title_canon_sha256": "be390a9260fea028c4e7bd0e24b7107c71587d545c0c774e9f4e89115751bfaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0507087",
    "kind": "arxiv",
    "version": 5
  }
}